VCL-2156, GigE NTP Server with PTP IEEE-1588v2 Grandmaster

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VCL-2156, GigE NTP Server

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The VCL-2156, GigE NTP Server is designed to provide PTP, NTP Clock that is locked to a GPS / GNSS reference to provide time synchronization to private networks such as Railways and Metro networks, Airports and Air-Traffic Control facilities, Power Utilities, Oil and Gas Utilities, ISPs and Cable TV networks as well as to Campus networks that are required to maintain a complete isolation from public networks for security reasons. VCL-2156 locks to a GPS / GNSS reference to provide an NTP time reference on up to 4 x 10/100/1000BaseT Ethernet Ports which can be segregated to serve separate classes of assets in the network.

Features
Specifications

Features and Highlights

IEEE 1588 v2 Precision Time Protocol Grandmaster
PTP Profiles supported: Telecom profile, Power profile
Support up to 128 PTP Clients
Gigabit Ethernet Interfaces for NTP and PTP ports
High bandwidth NTP performance
Upto 7,500 NTP requests per second

40,000 NTP Slaves supported
250,000 SNTP Slaves supported

Multiple NTP Ports - 4 Independent 10/100/1000 Mbit/s, RJ-45 Ethernet interfaces
ITU-T G.811 / Stratum 1 compliant (PR) Primary Reference when locked to GPS
ITU-T G.812 compliant holdover
Synchronization of NTP and SNTP clients
Leap Second Correction Support
MD5 authentication for NTP clients
Meets and comply with Power Contact and Lightening Protection as per EN61000-4-5 Level 3 specification
Alert notifications via SNMP Traps, SNMPv2, SNMPv3
Concurrent IPv6 and IPv4 operation
Networking protocols: IPv4, IPv6, SSH, TELNET, FTP, SYSLOG, SCP, TFTP, SCP, SFTP
Supports Anti Jamming
Supports Anti-Spoofing
Secure network management: enable or disable options
Double Oven Quartz Oscillator (OCXO) hold-over
DC, or AC, or 1+1 Redundant AC+DC Power Supply options.

Monitoring and Management

The configuration can be managed by Graphical User Management Interface. A text based and menu driven setup utility is also available via Telnet or SSH. An optional Graphical User Network Management Interface (NMS) allows multiple systems installed on a networks to be monitored and configured from a single or multiple management locations.

Performance

VCL-2156 has 4x10/100/1000BaseT Industrial Ethernet Ports that meet and comply with “Power Contact and Lightening Protection” as per EN61000-4-5 Level 3 specifications making it suitable for the equipment to be installed in harsh industrial environments which include Electric Sub-Stations, Railway and Metro Networks.

VCL-2156 is powered by a high performance microprocessor and a highly precise GPS based time receiver that provides a better than 30 nanosecond accuracy to assure high bandwidth NTP Performance of better than 7,500 NTP requests per second / 128 packets per seconds (40,000 NTP Slaves supported ).

Synchronization Inputs:

1+1 x GPS / GNSS (TNC)

PTP Time Output:

1 x Gigabit IEEE-1588 v2 PTP Grandmaster

NTP Outputs:

4 x 10/100/1000 Mbps NTP Interfaces
1 x 10/100Mbps user configurable NTP / OAM interface.

Applications Diagram:

GPS/GNSS Receiver Specifications:

50 Channel GPS Receiver
72 Channel GNSS Receiver
GPS L1 frequency, C/A Code Receiver
Tracks up to 12 satellites in GPS only mode (GPS only version)
Tracks up to 24 satellites in GNSS mode (GNSS version)
Synchronizing Time:

Acquisition time - Hot Start: Less than 1 sec.
Acquisition time - Warm Start: 28 sec.
Acquisition time - Cold Start: 28 sec.

GPS/GNSS Signal

Tracking and Navigation: -162 dBm
Reacquisition -160 dBm
Cold Start -148 dBm

Antenna Connector: TNC
Accuracy Of Time-Pulse Signal referenced to GPS: ± 30ns (raw)
Accuracy Of Time-Pulse Signal referenced to GNSS: ± 20ns (raw)
Accuracy Of Time-Pulse Signal referenced to GPS/GNSS: ± 15ns (compensated)
(Note: with all satellites in view at -130db).

Security and Protection:

Password Protection with password strength monitor
SSH.

Standards & Compliance

IEC - EMC – Certified to EN 55022: 2005 / CISPR 32A / EN55022, EN 55024:2005, IEC 61000-4-2, IEC 60255 / 61000-4-6, 8, 9, IEC 60255-22-6, IEC 60255-5:2000, IEC 61000-4-8, IEC 61000-4-9, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-18, IEC 60068-2-6, IEC 60068-2-1Ad, IEC 60068-2-14Ad, IEC 60068-2-2Bd, IEC 60068-2-30, IEC 61850-3
CE – 2001/95/EC, 2006/95/EC, EN60950-1, EN61000-6-2, EN61000-6-4
FCC – FCC Part 15 B Class A: Conducted Emission test on Power Line
FCC Part 15 B Class A: Radiated Emission >1 GHz FCC, 6 GHz, on Power Line

Network Time Protocol:

NTP v2, (RFC 1119), NTP v3 (RFC 1305), NTP v4, (RFC 5905), SNTP v3 (RFC 1769), SNTP v4 (RFP 2030), MD5 Authentication
Upto 7,500 NTP requests per second
40,000 NTP Slaves supported
250,000 SNTP Slaves supported
Internet Protocol: IPV4 - DHCP (RFC 2131), IPV6 - DHCPv6 (RFC 3315)
NTP Version 4.2.8p7
Time Protocol: TIME (RFC 868)
Daytime Protocol: DAYTIME (RFC 867)